FDMS8670S Fairchild Semiconductor, FDMS8670S Datasheet - Page 6

• Manufacturer Part Number: FDMS8670S
• Description: MOSFET N-CH 30V 20A POWER56
• Manufacturer: Fairchild Semiconductor
• Series: PowerTrench®r

Specifications of FDMS8670S

• Fet Type: MOSFET N-Channel, Metal Oxide
• Fet Feature: Logic Level Gate
• Rds On (max) @ Id, Vgs: 3.5 mOhm @ 20A, 10V
• Drain To Source Voltage (vdss): 30V
• Current - Continuous Drain (id) @ 25° C: 20A
• Vgs(th) (max) @ Id: 3V @ 1mA
• Gate Charge (qg) @ Vgs: 73nC @ 10V
• Input Capacitance (ciss) @ Vds: 4000pF @ 15V
• Power - Max: 2.5W
• Mounting Type: Surface Mount
• Package / Case: 8-PQFN, Power56
• Configuration: Single Quad Drain Triple Source
• Transistor Polarity: N-Channel
• Resistance Drain-source Rds (on): 0.0035 Ohm @ 10 V
• Drain-source Breakdown Voltage: 30 V
• Gate-source Breakdown Voltage: +/- 20 V
• Continuous Drain Current: 20 A
• Power Dissipation: 2500 mW
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FDMS8670STR

FDMS8670S Rev.C5
Typical Characteristics
SyncFET Schottky body diode
Characteristics
Fairchild’s SyncFET process embeds a Schottky diode in parallel
with PowerTrench MOSFET. This diode exhibits similar
characteristics to a discrete external Schottky diode in parallel
with a MOSFET. Figure 14 shows the reverses recovery
characteristic of the FDMS8670S.
Diode reverse recovery characteristics
Figure 14. FDMS8670S SyncFET Body
TIME: 12.5nS/Div
(continued)
6
Schottky barrier diodes exhibit significant leakage at high tem-
perature and high reverse voltage. This will increase the power
in the device.
1E-3
1E-4
1E-5
0.01
1E-3
1E-4
1E-5
1E-3
1E-4
1E-5
0.01
0.01
0.1
0.1
Figure 15. SyncFET Body Diode reverse
leakage vs drain to source voltage
0.1
0
0
0
5
5
5
VDS, REVERSE VOLTAGE (V)
V
V
DS
DS
, REVERSE VOLTAGE (V)
10
, REVERSE VOLTAGE (V)
10
10
T
T
T
A
A
A
= 125
= 100
T
T
15
= 25
T
J
J
T
T
J
15
T
= 100
15
= 125
J
J
= 25
J
= 100
o
o
o
= 125
= 25
C
C
C
o
o
o
C
C
C
20
o
o
C
o
C
C
20
20
25
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25
25
30
30
30